Title :
A Design Approach to Reduce Rotor Losses in High-Speed Permanent Magnet Machine for Turbo-Compressor
Author :
Cho, Han-Wook ; Jang, Seok-Myeong ; Choi, Sang-Kyu
Author_Institution :
Dept. of Electr. Eng., Chungnam Nat. Univ.
Abstract :
In this paper, a design approach to reduce rotor losses in high-speed permanent magnet machines for turbo-compressor is discussed. In particular, the influence of materials chosen for the retaining sleeve is highlighted. The two topologies of high-speed permanent magnet machines with Inconel718 and Carbon-Fiber/Epoxy sleeves are employed for comparison of computed rotor losses by two-dimensional finite-element method and analytical field analysis. It is shown that the Carbon-Fiber/Epoxy is superior to Inconel718 in terms of reducing rotor losses
Keywords :
carbon fibre reinforced composites; compressors; electromagnetic fields; finite element analysis; permanent magnet machines; rotors; Inconel718; carbon-fiber sleeves; epoxy sleeves; finite-element method; permanent magnet machine; retaining sleeve material; rotor losses; turbocompressor; Finite element methods; Magnetic analysis; Magnetic flux; Magnetic materials; Magnetostatics; Permanent magnet machines; Permanent magnets; Rotors; Stators; Topology; High-speed permanent magnet machines; retaining sleeve; rotor losses;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2006.879086
